In standard trim the 2012 Chevrolet Camaro ZL1, at the very least happening the state run figures released so far because vehicle continues to be not on sale, has already been shaping around be described as a very capable muscle car.

We’d go as far as to say that it’s even encroaching on supercar territory thanks to its quoted output figures of 580 horsepower at 6,000 rpm and 556 pound-feet of torque at 4,200 rpm.

However, the people at Hennessey, which recently celebrated their company’s 20th anniversary with another unique Camaro, aren’t holding back with Chevrolet’s latest, today announcing a selection of performance upgrades that may understand the car develop approximately 1,026 horsepower.

Yes, you read that correctly. Hennessey is providing a HPE1000 Twin Turbo upgrade for that ZL1 that delivers some 1,021 horsepower.

The upgrade is very a radical one, requiring the removing of the supercharged LSA engine and the installation of a 7.0-liter LSX unit having a custom twin-turbocharging kit. Unique top features of the mega powerplant would include forged internals, high-flow cylinder heads, upgraded fuel injectors, an electronic boost controller and dual wastegates, an air-to-air intercooler, as well as a stainless-steel exhaust system.

Note, interested customers has to be capable to drive a manual car as it’s limited which has a heavy-duty dual friction clutch, and no, it won’t be legal inside state of California.

Fortunately, Hennessey will also be running some milder tunes for the new Camaro ZL1, starting with basics HPE600 package offering 610 horsepower, along with HPE650, 700 and 800 packages with varying output figures being dialed up.